PHP MySQLi: options() function
mysqli_options() function / mysqli::options
The mysqli_options() function / mysqli::options sets extra connect options and affect behavior for a connection.
This function can be called several times to set several options.
Syntax:
Object oriented style
bool mysqli::options ( int $option , mixed $value )
Procedural style
bool mysqli_options ( mysqli $link , int $option , mixed $value )
Parameter:
Name | Description | Required/Optional | |
---|---|---|---|
link | A link identifier returned by mysqli_connect() or mysqli_init() | Required for procedural style only and Optional for Object oriented style | |
option | The option that you want to set. It can be one of the following values: | Required for procedural style only and Optional for Object oriented style | |
Name | Description | ||
MYSQLI_OPT_CONNECT_TIMEOUT | connection timeout in seconds (supported on Windows with TCP/IP since PHP 5.3.1) | ||
MYSQLI_OPT_LOCAL_INFILE | enable/disable use of LOAD LOCAL INFILE | ||
MYSQLI_INIT_COMMAND | command to execute after when connecting to MySQL server | ||
MYSQLI_READ_DEFAULT_FILE | Read options from named option file instead ofmy.cnf | ||
MYSQLI_READ_DEFAULT_GROUP | Read options from the named group from my.cnfor the file specified with MYSQL_READ_DEFAULT_FILE. | ||
MYSQLI_SERVER_PUBLIC_KEY | RSA public key file used with the SHA-256 based authentication. | ||
MYSQLI_OPT_NET_CMD_BUFFER_SIZE | The size of the internal command/network buffer. Only valid for mysqlnd. | ||
MYSQLI_OPT_NET_READ_BUFFER_SIZE | Maximum read chunk size in bytes when reading the body of a MySQL command packet. Only valid for mysqlnd. | ||
MYSQLI_OPT_INT_AND_FLOAT_NATIVE | Convert integer and float columns back to PHP numbers. Only valid for mysqlnd. | ||
MYSQLI_OPT_SSL_VERIFY_SERVER_CERT | |||
value | The value for the option. | Required for procedural style only and Optional for Object oriented style |
Usage: Procedural style
mysqli_options(connection,option,value);
Parameter:
Name | Description |
---|---|
connection | Specifies the MySQL connection to use |
option | Specifies the option to set. Can be one of the following values:
|
value | Specifies the value for the option |
Return value:
Returns TRUE on success or FALSE on failure.
Version: PHP 5, PHP 7
Example:
<?php
$con=mysqli_init();
if (!$con){
die("mysqli_init failed");
}
mysqli_options($con,MYSQLI_READ_DEFAULT_FILE,"w3r.cnf");
if (!mysqli_real_connect($con,"localhost","user1","datasoft123","hr")){
die("Connect Error: " . mysqli_connect_error());
}
mysqli_close($con);
?>
See also
Previous: next_result
Next: ping
PHP: Tips of the Day
var_export(): var_export() dumps a PHP parseable representation of the item.
You can pass true as the second parameter to return the contents into a variable.
Example:
<?php $myarray = [ "PHP", "Tips" ]; $mystring = "PHP Tips"; $myint = 28; var_export($myarray); var_export($mystring); var_export($myint); ?>
Output:
array ( 0 => 'PHP', 1 => 'Tips', )'PHP Tips'28
To put the content into a variable, you can do this:
$array_export = var_export($myarray, true); $string_export = var_export($mystring, true); $int_export = var_export($myint, 1); // any `Truthy` value
After that, you can output it like this:
printf('$myarray = %s; %s', $array_export, PHP_EOL); printf('$mystring = %s; %s', $string_export, PHP_EOL); printf('$myint = %s; %s', $int_export, PHP_EOL);
Example:
<?php $myarray = [ "PHP", "Tips" ]; $mystring = "PHP Tips"; $myint = 28; $array_export = var_export($myarray, true); $string_export = var_export($mystring, true); $int_export = var_export($myint, 1); printf('$myarray = %s; %s', $array_export, PHP_EOL); printf('$mystring = %s; %s', $string_export, PHP_EOL); printf('$myint = %s; %s', $int_export, PHP_EOL); ?>
This will produce the following output:
Output:
$myarray = array ( 0 => 'PHP', 1 => 'Tips', ); $mystring = 'PHP Tips'; $myint = 28;
- New Content published on w3resource:
- HTML-CSS Practical: Exercises, Practice, Solution
- Java Regular Expression: Exercises, Practice, Solution
- Scala Programming Exercises, Practice, Solution
- Python Itertools exercises
- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
- Form Template
- Composer - PHP Package Manager
- PHPUnit - PHP Testing
- Laravel - PHP Framework
- Angular - JavaScript Framework
- Vue - JavaScript Framework
- Jest - JavaScript Testing Framework